Listening Quiz. Dallapiccola: Machado Lyrics, Annalibera's Musical Notebook, Songs of the Liberation, Goethe Lieder. Compendium of early Musique Concrète, then Electronic Music by Boulez and Stockhausen. Early Nono. The inner versus the external ear. Analysis of Webern Op. 21. Twentieth lecture of the course "The Contemporary Era" by Antioch College Professor John Ronsheim. This course traces the history of 20th Century music until about 1970. For more information visit ronsheim.org.